Weather in Portland in August
Portland, United States averages a high of 23.9°C (75°F) and low of 17.4°C (63.3°F) in August, with 9 rain days and 10.9 hours of daily sunshine. Travel score: 83.3/100 (Excellent). The best time to visit Portland is August.
High
24°C75°F
Low
17°C63°F
🌧️
9
rain days
☀️
10.9
hrs/day sunshine
💧
77%
humidity
83— Excellent
August in Portland is warm and occasionally wet — ideal for sightseeing and outdoor activities.
What are the average temperatures in Portland?
How much does it rain in Portland in August?
Portland receives an average of 80.9mm of rainfall across 9 rainy days in August. The annual total is 1105.6mm.
What should I pack for Portland in August?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
11 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (9 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to United States in August?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31